Service difficulty report · Support · Bell 412EP

Difficulty date
August 19, 2010
Submitted
August 19, 2010
Operation
General aviation
Aircraft
N813FK
Make and model
Bell 412EP
Aircraft serial
36388
Aircraft time
1,833 hours, 11,951 cycles
Engine
Pwa PT6T3
Part
Support
Part number
205030889015
Condition
Cracked
Location
Tailboom
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING A 300 HOUR, PART B INSP, IT WAS DISCOVERED THAT THE SUPPORTS (PN - 205-030-889-015) WERE FOUND CRACKED. 2 OTHER ACFT IN THE FLEET WERE CHECKED AND FOUND TO HAVE WORKING RIVETS IN THE SAME LOCATION. THIS CAUSES PLAY IN THE ELEVATORS AND IF LEFT UNDETECTED, COULD CAUSE FAILURE OF THE ELEVATOR SUPPORT AND SUBSEQUENT LOSS OF THE ELEVATOR. MFG HAS AN OPTIONAL TECH BULLETIN (412-08-214) ON THE SUBJECT, BUT CONSIDERING THE SERIOUS NATURE OF THE SUPPORTS, WE BELIEVE THAT THIS TECH BULLETIN SHOULD BE CONSIDERED AN ALERT SB IF NOT ELEVATED TO AN AD.

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